Basic Concepts — Practice MCQs for CCAT

Correct Answer: C — CPU

The CPU (Central Processing Unit) is called the brain of the computer as it performs all the processing and calculations.

Correct Answer: B — Random Access Memory

RAM stands for Random Access Memory. It is the computer's short-term memory used to store data that is actively being used.

Correct Answer: D — Keyboard

Keyboard is an input device used to enter data into the computer. Monitor, printer, and speaker are output devices.

Correct Answer: A — Read Only Memory

ROM stands for Read Only Memory. It is non-volatile memory that retains data even when power is off.

Correct Answer: C — RAM

RAM is volatile memory - it loses its contents when power is turned off.

Correct Answer: B — 1024 Bytes

1 Kilobyte (KB) = 1024 Bytes = 2^10 Bytes.

Correct Answer: C — Oracle

Oracle is a database management system, not an operating system.

Correct Answer: A — Booting

Booting is the process of starting up a computer and loading the operating system.

Correct Answer: C — Hard Drive

Hard Drive is a secondary storage device used for permanent data storage and backup.

Correct Answer: A — Basic Input Output System

BIOS stands for Basic Input Output System. It initializes hardware during booting.

Correct Answer: A — First

First generation computers (1940-1956) used vacuum tubes for circuitry.

Correct Answer: B — Second

Second generation computers (1956-1963) used transistors instead of vacuum tubes.

Correct Answer: C — Third

Third generation computers (1964-1971) used Integrated Circuits.

Correct Answer: A — Cache

Cache memory is the fastest memory, located closest to the CPU.

Correct Answer: A — Universal Serial Bus

USB stands for Universal Serial Bus, a standard for connecting peripherals.